773 lines
22 KiB
C
773 lines
22 KiB
C
/*******************************************************************************
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*
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* Module Name: utresrc - Resource managment utilities
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*
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******************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __UTRESRC_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "amlresrc.h"
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME ("utresrc")
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#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
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/*
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* Strings used to decode resource descriptors.
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* Used by both the disasssembler and the debugger resource dump routines
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*/
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const char *AcpiGbl_BmDecode[] =
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{
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"NotBusMaster",
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"BusMaster"
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};
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const char *AcpiGbl_ConfigDecode[] =
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{
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"0 - Good Configuration",
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"1 - Acceptable Configuration",
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"2 - Suboptimal Configuration",
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"3 - ***Invalid Configuration***",
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};
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const char *AcpiGbl_ConsumeDecode[] =
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{
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"ResourceProducer",
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"ResourceConsumer"
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};
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const char *AcpiGbl_DecDecode[] =
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{
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"PosDecode",
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"SubDecode"
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};
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const char *AcpiGbl_HeDecode[] =
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{
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"Level",
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"Edge"
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};
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const char *AcpiGbl_IoDecode[] =
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{
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"Decode10",
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"Decode16"
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};
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const char *AcpiGbl_LlDecode[] =
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{
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"ActiveHigh",
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"ActiveLow"
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};
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const char *AcpiGbl_MaxDecode[] =
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{
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"MaxNotFixed",
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"MaxFixed"
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};
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const char *AcpiGbl_MemDecode[] =
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{
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"NonCacheable",
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"Cacheable",
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"WriteCombining",
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"Prefetchable"
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};
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const char *AcpiGbl_MinDecode[] =
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{
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"MinNotFixed",
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"MinFixed"
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};
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const char *AcpiGbl_MtpDecode[] =
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{
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"AddressRangeMemory",
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"AddressRangeReserved",
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"AddressRangeACPI",
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"AddressRangeNVS"
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};
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const char *AcpiGbl_RngDecode[] =
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{
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"InvalidRanges",
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"NonISAOnlyRanges",
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"ISAOnlyRanges",
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"EntireRange"
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};
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const char *AcpiGbl_RwDecode[] =
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{
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"ReadOnly",
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"ReadWrite"
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};
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const char *AcpiGbl_ShrDecode[] =
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{
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"Exclusive",
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"Shared"
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};
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const char *AcpiGbl_SizDecode[] =
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{
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"Transfer8",
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"Transfer8_16",
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"Transfer16",
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"InvalidSize"
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};
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const char *AcpiGbl_TrsDecode[] =
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{
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"DenseTranslation",
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"SparseTranslation"
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};
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const char *AcpiGbl_TtpDecode[] =
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{
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"TypeStatic",
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"TypeTranslation"
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};
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const char *AcpiGbl_TypDecode[] =
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{
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"Compatibility",
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"TypeA",
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"TypeB",
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"TypeF"
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};
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#endif
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/*
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* Base sizes of the raw AML resource descriptors, indexed by resource type.
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* Zero indicates a reserved (and therefore invalid) resource type.
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*/
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const UINT8 AcpiGbl_ResourceAmlSizes[] =
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{
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/* Small descriptors */
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0,
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0,
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0,
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0,
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_IRQ),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_DMA),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_START_DEPENDENT),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_END_DEPENDENT),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_IO),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_FIXED_IO),
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0,
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0,
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0,
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0,
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_VENDOR_SMALL),
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ACPI_AML_SIZE_SMALL (AML_RESOURCE_END_TAG),
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/* Large descriptors */
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0,
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_MEMORY24),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_GENERIC_REGISTER),
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0,
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_VENDOR_LARGE),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_MEMORY32),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_FIXED_MEMORY32),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS32),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS16),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_EXTENDED_IRQ),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS64),
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ACPI_AML_SIZE_LARGE (AML_RESOURCE_EXTENDED_ADDRESS64)
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};
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/*
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* Resource types, used to validate the resource length field.
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* The length of fixed-length types must match exactly, variable
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* lengths must meet the minimum required length, etc.
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* Zero indicates a reserved (and therefore invalid) resource type.
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*/
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static const UINT8 AcpiGbl_ResourceTypes[] =
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{
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/* Small descriptors */
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0,
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0,
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0,
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0,
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ACPI_SMALL_VARIABLE_LENGTH,
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ACPI_FIXED_LENGTH,
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ACPI_SMALL_VARIABLE_LENGTH,
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ACPI_FIXED_LENGTH,
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ACPI_FIXED_LENGTH,
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ACPI_FIXED_LENGTH,
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0,
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0,
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0,
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0,
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ACPI_VARIABLE_LENGTH,
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ACPI_FIXED_LENGTH,
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/* Large descriptors */
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0,
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ACPI_FIXED_LENGTH,
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ACPI_FIXED_LENGTH,
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0,
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ACPI_VARIABLE_LENGTH,
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ACPI_FIXED_LENGTH,
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ACPI_FIXED_LENGTH,
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ACPI_VARIABLE_LENGTH,
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ACPI_VARIABLE_LENGTH,
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ACPI_VARIABLE_LENGTH,
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ACPI_VARIABLE_LENGTH,
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ACPI_FIXED_LENGTH
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};
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtWalkAmlResources
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*
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* PARAMETERS: Aml - Pointer to the raw AML resource template
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* AmlLength - Length of the entire template
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* UserFunction - Called once for each descriptor found. If
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* NULL, a pointer to the EndTag is returned
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* Context - Passed to UserFunction
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*
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* RETURN: Status
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*
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* DESCRIPTION: Walk a raw AML resource list(buffer). User function called
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* once for each resource found.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtWalkAmlResources (
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UINT8 *Aml,
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ACPI_SIZE AmlLength,
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ACPI_WALK_AML_CALLBACK UserFunction,
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void *Context)
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{
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ACPI_STATUS Status;
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UINT8 *EndAml;
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UINT8 ResourceIndex;
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UINT32 Length;
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UINT32 Offset = 0;
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ACPI_FUNCTION_TRACE (UtWalkAmlResources);
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/* The absolute minimum resource template is one EndTag descriptor */
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if (AmlLength < sizeof (AML_RESOURCE_END_TAG))
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{
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return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
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}
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/* Point to the end of the resource template buffer */
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EndAml = Aml + AmlLength;
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/* Walk the byte list, abort on any invalid descriptor type or length */
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while (Aml < EndAml)
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{
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/* Validate the Resource Type and Resource Length */
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Status = AcpiUtValidateResource (Aml, &ResourceIndex);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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/* Get the length of this descriptor */
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Length = AcpiUtGetDescriptorLength (Aml);
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/* Invoke the user function */
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if (UserFunction)
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{
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Status = UserFunction (Aml, Length, Offset, ResourceIndex, Context);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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}
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/* An EndTag descriptor terminates this resource template */
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if (AcpiUtGetResourceType (Aml) == ACPI_RESOURCE_NAME_END_TAG)
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{
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/*
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* There must be at least one more byte in the buffer for
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* the 2nd byte of the EndTag
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*/
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if ((Aml + 1) >= EndAml)
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{
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return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
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}
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/* Return the pointer to the EndTag if requested */
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if (!UserFunction)
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{
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*(void **) Context = Aml;
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}
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/* Normal exit */
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return_ACPI_STATUS (AE_OK);
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}
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Aml += Length;
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Offset += Length;
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}
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/* Did not find an EndTag descriptor */
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return (AE_AML_NO_RESOURCE_END_TAG);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtValidateResource
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*
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* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
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* ReturnIndex - Where the resource index is returned. NULL
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* if the index is not required.
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*
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* RETURN: Status, and optionally the Index into the global resource tables
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*
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* DESCRIPTION: Validate an AML resource descriptor by checking the Resource
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* Type and Resource Length. Returns an index into the global
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* resource information/dispatch tables for later use.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiUtValidateResource (
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void *Aml,
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UINT8 *ReturnIndex)
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{
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UINT8 ResourceType;
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UINT8 ResourceIndex;
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ACPI_RS_LENGTH ResourceLength;
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ACPI_RS_LENGTH MinimumResourceLength;
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ACPI_FUNCTION_ENTRY ();
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/*
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* 1) Validate the ResourceType field (Byte 0)
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*/
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ResourceType = ACPI_GET8 (Aml);
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/*
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* Byte 0 contains the descriptor name (Resource Type)
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* Examine the large/small bit in the resource header
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*/
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if (ResourceType & ACPI_RESOURCE_NAME_LARGE)
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{
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/* Verify the large resource type (name) against the max */
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if (ResourceType > ACPI_RESOURCE_NAME_LARGE_MAX)
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{
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return (AE_AML_INVALID_RESOURCE_TYPE);
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}
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/*
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* Large Resource Type -- bits 6:0 contain the name
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* Translate range 0x80-0x8B to index range 0x10-0x1B
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*/
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ResourceIndex = (UINT8) (ResourceType - 0x70);
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}
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else
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{
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/*
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* Small Resource Type -- bits 6:3 contain the name
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* Shift range to index range 0x00-0x0F
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*/
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ResourceIndex = (UINT8)
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((ResourceType & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3);
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}
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/* Check validity of the resource type, zero indicates name is invalid */
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if (!AcpiGbl_ResourceTypes[ResourceIndex])
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{
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return (AE_AML_INVALID_RESOURCE_TYPE);
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}
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/*
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* 2) Validate the ResourceLength field. This ensures that the length
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* is at least reasonable, and guarantees that it is non-zero.
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*/
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ResourceLength = AcpiUtGetResourceLength (Aml);
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MinimumResourceLength = AcpiGbl_ResourceAmlSizes[ResourceIndex];
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/* Validate based upon the type of resource - fixed length or variable */
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switch (AcpiGbl_ResourceTypes[ResourceIndex])
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{
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case ACPI_FIXED_LENGTH:
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/* Fixed length resource, length must match exactly */
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if (ResourceLength != MinimumResourceLength)
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{
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return (AE_AML_BAD_RESOURCE_LENGTH);
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}
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break;
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case ACPI_VARIABLE_LENGTH:
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/* Variable length resource, length must be at least the minimum */
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if (ResourceLength < MinimumResourceLength)
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{
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return (AE_AML_BAD_RESOURCE_LENGTH);
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}
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break;
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case ACPI_SMALL_VARIABLE_LENGTH:
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/* Small variable length resource, length can be (Min) or (Min-1) */
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if ((ResourceLength > MinimumResourceLength) ||
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(ResourceLength < (MinimumResourceLength - 1)))
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{
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return (AE_AML_BAD_RESOURCE_LENGTH);
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}
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break;
|
|
|
|
default:
|
|
|
|
/* Shouldn't happen (because of validation earlier), but be sure */
|
|
|
|
return (AE_AML_INVALID_RESOURCE_TYPE);
|
|
}
|
|
|
|
/* Optionally return the resource table index */
|
|
|
|
if (ReturnIndex)
|
|
{
|
|
*ReturnIndex = ResourceIndex;
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceType
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: The Resource Type with no extraneous bits (except the
|
|
* Large/Small descriptor bit -- this is left alone)
|
|
*
|
|
* DESCRIPTION: Extract the Resource Type/Name from the first byte of
|
|
* a resource descriptor.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT8
|
|
AcpiUtGetResourceType (
|
|
void *Aml)
|
|
{
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* Byte 0 contains the descriptor name (Resource Type)
|
|
* Examine the large/small bit in the resource header
|
|
*/
|
|
if (ACPI_GET8 (Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
/* Large Resource Type -- bits 6:0 contain the name */
|
|
|
|
return (ACPI_GET8 (Aml));
|
|
}
|
|
else
|
|
{
|
|
/* Small Resource Type -- bits 6:3 contain the name */
|
|
|
|
return ((UINT8) (ACPI_GET8 (Aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceLength
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: Byte Length
|
|
*
|
|
* DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
|
|
* definition, this does not include the size of the descriptor
|
|
* header or the length field itself.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT16
|
|
AcpiUtGetResourceLength (
|
|
void *Aml)
|
|
{
|
|
ACPI_RS_LENGTH ResourceLength;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* Byte 0 contains the descriptor name (Resource Type)
|
|
* Examine the large/small bit in the resource header
|
|
*/
|
|
if (ACPI_GET8 (Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
/* Large Resource type -- bytes 1-2 contain the 16-bit length */
|
|
|
|
ACPI_MOVE_16_TO_16 (&ResourceLength, ACPI_ADD_PTR (UINT8, Aml, 1));
|
|
|
|
}
|
|
else
|
|
{
|
|
/* Small Resource type -- bits 2:0 of byte 0 contain the length */
|
|
|
|
ResourceLength = (UINT16) (ACPI_GET8 (Aml) &
|
|
ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
|
|
}
|
|
|
|
return (ResourceLength);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceHeaderLength
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: Length of the AML header (depends on large/small descriptor)
|
|
*
|
|
* DESCRIPTION: Get the length of the header for this resource.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT8
|
|
AcpiUtGetResourceHeaderLength (
|
|
void *Aml)
|
|
{
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/* Examine the large/small bit in the resource header */
|
|
|
|
if (ACPI_GET8 (Aml) & ACPI_RESOURCE_NAME_LARGE)
|
|
{
|
|
return (sizeof (AML_RESOURCE_LARGE_HEADER));
|
|
}
|
|
else
|
|
{
|
|
return (sizeof (AML_RESOURCE_SMALL_HEADER));
|
|
}
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetDescriptorLength
|
|
*
|
|
* PARAMETERS: Aml - Pointer to the raw AML resource descriptor
|
|
*
|
|
* RETURN: Byte length
|
|
*
|
|
* DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
|
|
* length of the descriptor header and the length field itself.
|
|
* Used to walk descriptor lists.
|
|
*
|
|
******************************************************************************/
|
|
|
|
UINT32
|
|
AcpiUtGetDescriptorLength (
|
|
void *Aml)
|
|
{
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* Get the Resource Length (does not include header length) and add
|
|
* the header length (depends on if this is a small or large resource)
|
|
*/
|
|
return (AcpiUtGetResourceLength (Aml) +
|
|
AcpiUtGetResourceHeaderLength (Aml));
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtGetResourceEndTag
|
|
*
|
|
* PARAMETERS: ObjDesc - The resource template buffer object
|
|
* EndTag - Where the pointer to the EndTag is returned
|
|
*
|
|
* RETURN: Status, pointer to the end tag
|
|
*
|
|
* DESCRIPTION: Find the EndTag resource descriptor in an AML resource template
|
|
* Note: allows a buffer length of zero.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtGetResourceEndTag (
|
|
ACPI_OPERAND_OBJECT *ObjDesc,
|
|
UINT8 **EndTag)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtGetResourceEndTag);
|
|
|
|
|
|
/* Allow a buffer length of zero */
|
|
|
|
if (!ObjDesc->Buffer.Length)
|
|
{
|
|
*EndTag = ObjDesc->Buffer.Pointer;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Validate the template and get a pointer to the EndTag */
|
|
|
|
Status = AcpiUtWalkAmlResources (ObjDesc->Buffer.Pointer,
|
|
ObjDesc->Buffer.Length, NULL, EndTag);
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|